Now showing items 71-80 of 119
Vibrational analysis of 2,3-dichlorobutanes
(Elsevier, 1983)
Using intensity changes from liquid to solid for meso- and racemic-2,3-dichlorobutanes, and preliminary normal mode calculations based on a force field for secondary chlorides, we have been able to identify the bands ...
Vibrational studies of the disulfide group in proteins. VI. General correlations of SS and CS stretch frequencies with disulfide bridge geometry
(Wiley Subscription Services, Inc., A Wiley Company, 1992-08)
Normal mode calculations have been done on a range of disulfide bridge conformations in order to determine how the SS stretch and CS stretch frequencies depend on structure. In addition to varying the C Α C Β SS and NC Α ...
Vibrational analysis of peptides, polypeptides, and proteins. VI. Assignment of Β-turn modes in insulin and other proteins
(Wiley Subscription Services, Inc., A Wiley Company, 1980-01)
The normal modes have been calculated for structures having the dihedral angles of the four Β-turns of insulin. Frequencies are predicted in the amide I region near 1652 and 1680 cm −1 . The former overlaps the Α-helix ...
A valence force field for the amide group
(Elsevier, 1971-01)
A valence force field is presented for the grouping R-CO-NH-R' where R and R' are CH2 or CH3, derived from the frequencies of N-methylacetanide, nylons, and some of the deuteroderivatives. By refining all experimental data ...
The calculated circular dichroism of polyproline ii in the polarizability approximation
(Wiley Subscription Services, Inc., A Wiley Company, 1974-08)
The circular dichroism (CD) spectrum of polyproline II (PPII) has heretofore been moderately well calculated from exciton theory only at the expense of assuming unreasonable chain conformations and accepting a conservative ...
Shift and broadening of the vibrational mode for a diatomic molecule adsorbed on a metal surface
(Elsevier, 1983-06-02)
The shift and broadening of the vibrational frequency of a diatomic molecule adsorbed on a metal surface are calculated on the basis of electromagnetic interactions. Finite molecular size and nonlocal metal response are ...
Low dimensional reaction kinetics and self-organization
(Elsevier, 1991-02)
Diffusion-limited reaction kinetics becomes anomalous not only for fractals, with their anomalous diffusion, but also for low-dimensional (one and two) and disperse media, where the random walk is compact. We focus on ...
High resolution laser spectroscopy of relaxation and the excitation lineshape of excitons in GaAs quantum well structures
(Elsevier, 1990-04-01)
A new class of measurements on GaAs quantum well structures based on frequency domain nonlinear laser spectroscopy is described. Room temperature measurements of the excitation relaxation show an interference effect in the ...
Calixarene Derivatives as Novel Nanopore Generators for Templates of Nanoporous Thin Films
(WILEY-VCH Verlag, 2006-04-07)
Summary: We report herein calixarene derivatives, which could adapt to various fields of application, as novel pore generators for making nanoporous materials. The pore structure of nanoporous materials exhibits disordered ...
Future directions of positron annihilation spectroscopy in low-k dielectric films
(WILEY-VCH Verlag, 2007-09)
Positronium Annihilation Lifetime Spectroscopy (PALS) has become recognized in the microelectronics industry as one of only several methods capable of quantitatively characterizing engineered nanopores in next-generation ...